Glacier Transportable Sampler - Isco

Glacier Transportable Sampler
Section 5 Maintenance
Figure 5-4 Internal Desiccant
9. Replace the front panel using care to ensure that the wiring
will be free of the gear train.
10. Replace the bezel and screws. Tighten the 10 screws in an
even, cross-torquing pattern.
The internal humidity indicator should return to its normal blue
color in a few hours.
5.7.1 Renewing the
Desiccant
CAUTION
Desiccant may produce irritating fumes when heated. To
reduce the hazard of the fumes:
• Use a vented oven in a well-ventilated room
• Do not remain in the room while recharging is taking place
• Use the recommended temperature.
There have been reports of irritating fumes coming from the
desiccant during reactivation. While our attempts to duplicate
the problem have been unsuccessful, we still urge you to use
caution. Material Safety Data Sheets are provided in
Appendix C.
To renew the desiccant:
1. Remove the bag from the Glacier controller.
2. Place a sheet of brown paper on a flat metal sheet. You can
use a brown grocery bag and a typical cookie sheet.
3. Place the bag on the sheet. If you are recharging several
bags, do not stack the bags on top of each other or allow
them to touch.
4. Place in a vented, circulating forced air, convection oven in
a well-ventilated room. Allow two inches of air space
between the top of the bag and the next rack. Keep the tray
a minimum of 16 inches from the heating element.
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